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Question: Answered & Verified by Expert
Let $R$ be the real line. Let the relations $S$ and $T$ on $R$ be defined by $S=\{(x, y): y=x+1,0 < x < 2\}, T=\{(x, y):(x-y)$ is an integer $\}$. Then
MathematicsSets and RelationsJEE Main
Options:
  • A both $S$ and $T$ are equivalence relations on $R$
  • B $\mathrm{T}$ is an equivalence on $\mathrm{R}$ but $\mathrm{S}$ is not
  • C neither $S$ nor $T$ is an equivalence relation on $R$
  • D $\mathrm{S}$ is an equivalence relation on $\mathrm{R}$ but $\mathrm{T}$ is not
Solution:
1200 Upvotes Verified Answer
The correct answer is: $\mathrm{T}$ is an equivalence on $\mathrm{R}$ but $\mathrm{S}$ is not
$\mathrm{T}$ is an equivalence but $\mathrm{S}$ is not

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